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- Periodic table (7298 bytes)
1: ...ent is listed by its [[atomic number]] and [[chemical symbol]].
3: ...al elements|other methods for displaying the chemical elements]] for more details or different perspec...
6: A [[periodic table group|group]] is a vertical column in the periodic table of the elements. Th...
14: ==Other methods for displaying the chemical elements==
16: *A [[Periodic table (alternate)|vertical table]] for improved readablity in web browsers - Chemical element (8169 bytes)
1: ...different substances by ordinary [[chemistry|chemical]] methods. The smallest particle of such an elem...
3: ...e [[radioactive]] and in undergoing radioactive decay transmute into a different element.
7: ...esent at the formation of Earth have long since decayed.
9: ... table]], which groups elements with similar chemical properties together.
11: ...nits comprising the same kind of atoms. These are called [[allotropy|allotropes]], irrespective of the... - Chemical series (2075 bytes)
1: ... of [[chemical element]]s whose physical and chemical characteristics vary progressively from one end ...
3: ... to organise the elements according to their chemical properties.
5: ...ble group]]s: this is not a coincidence, the physical properties that group them arise from the same [...
7: The chemical series of the periodic table are the:
26: |style="background:#FFFF99;"| [[Halogen]]s || (periodic table group 17) - Antimony (9093 bytes)
26: | [[Density]], [[Mohs hardness scale|Hardness]]
36: | [[Atomic radius]] (calc.) || 145 (133) [[picometre|pm]]
52: ! colspan="2" bgcolor="#cccc99" | Physical properties
68: | [[Vapor pressure]] || 2.49 E-9 [[Pascal|Pa]] @ 6304 K
74: | [[Electronegativity]] || 2.05 ([[Pauling scale]]) - Astatine (5377 bytes)
21: | [[Halogen]]s
26: | [[Density]], [[Mohs hardness scale|Hardness]]
52: ! colspan="2" bgcolor="#ffff99" | Physical properties
74: | [[Electronegativity]] || 2.2 ([[Pauling scale]])
76: | [[Specific heat capacity]] || no data - Bromine (8073 bytes)
19: | [[halogen]]s
24: | [[Density]], [[Mohs hardness scale|Hardness]]
35: | [[Atomic radius]] (calc.)
56: ! colspan="2" bgcolor="#ffff99" | Physical properties
77: | 5800 [[Pascal|Pa]] at 266.1K - Chlorine (10751 bytes)
2: {{Elementbox_series | [[halogen]]s }}
8: {{Elementbox_section_physicalprop | color1=#ffff99 | color2=black }}
14: {{Elementbox_heatcapacity_jpmolkat25 | (Cl<sub>2</sub>)<br />33.949 }...
22: {{Elementbox_atomicradiuscalc_pm | [[1 E-11 m|79]] }}
30: {{Elementbox_cas_number | 7782-50-5 }} - Fluorine (8588 bytes)
2: {{Elementbox_series | [[halogen]]s }}
8: {{Elementbox_section_physicalprop | color1=#ffff99 | color2=green }}
14: {{Elementbox_heatcapacity_jpmolkat25 | (F<sub>2</sub>)<br />31.304 }}
22: {{Elementbox_atomicradiuscalc_pm | [[1 E-11 m|42]] }}
28: {{Elementbox_cas_number | 7782-41-4 }} - Gold (24329 bytes)
20: | [[Chemical series]]
26: | [[Density]], [[Mohs hardness scale|Hardness]]
37: | [[Atomic radius]] (calc.)
59: ...an="2" align="center" bgcolor="#ffc0c0" | '''Physical properties'''
80: | 237 [[Pascal|µPa]] at 1337 K - Hafnium (9162 bytes)
17: | [[Chemical series]]
23: | [[Density]], [[Mohs hardness scale|Hardness]]
34: | [[Atomic radius]] (calc.)
55: ...lspan="2" align="center" bgcolor="ffc0c0"|'''Physical Properties'''
76: | 1.12 [[Pascal|mPa]] at 2500 K - Iodine (11416 bytes)
20: | [[halogen]]s
25: | [[Density]], [[Mohs hardness scale|Hardness]]
36: | [[Atomic radius]] (calc.)
57: ...an="2" align="center" bgcolor="#ffff99" | '''Physical properties'''
78: | __ [[Pascal|Pa]] at __ K - Lanthanum (10184 bytes)
17: <td>[[Chemical series]] </td><td>[...
21: <td>[[Density]], [[Mohs hardness scale|Hardness]] </td><td>6146 [[kilogram per cubi...
29: <td>[[Atomic radius]] (calc.) </td><td>[[1 E-_ m|195...
43: ...span="2" align="center" bgcolor="#ffbfff">'''Physical properties'''</th></tr>
56: ... </td><td>1.33E-07 [[Pascal|Pa]] at 1193 K</td></tr> - Platinum (10600 bytes)
18: |[[Chemical series]] || [[transition metal]]s
22: |[[Density]], [[Mohs hardness scale|Hardness]] || 21450 [[kilogram per cubic metre|...
30: |[[Atomic radius]] (calc.) || 135 (177) [[picometre|pm]]
44: ...an="2" align="center" bgcolor="#ffc0c0" | '''Physical properties'''
58: |[[Vapor pressure]] || 0.0312 [[Pascal|Pa]] at 2045 K - Ruthenium (10241 bytes)
19: | [[Chemical series]]
25: | [[Density]], [[Mohs hardness scale|Hardness]]
36: | [[Atomic radius]] (calc.)
57: ...an="2" align="center" bgcolor="#ffc0c0" | '''Physical properties'''
78: | 1.4 [[Pascal|Pa]] at 2523 K - Silicon (13233 bytes)
1: ...ft=[[aluminium]] | right=[[phosphorus]] | above=[[carbon|C]] | below=[[germanium|Ge]] | color1=#cccc99...
8: {{Elementbox_section_physicalprop | color1=#cccc99 | color2=black }}
16: {{Elementbox_heatcapacity_jpmolkat25 | 19.789 }}
24: {{Elementbox_atomicradiuscalc_pm | [[1 E-10 m|111]] }}
35: {{Elementbox_cas_number | 7440-21-3 }} - Silver (15157 bytes)
5: ...r" | [[palladium]] – '''silver''' – [[cadmium]]
18: | [[Chemical series]]
24: | [[Density]], [[Mohs hardness scale|Hardness]]
35: | [[Atomic radius]] (calc.)
56: ...an="2" align="center" bgcolor="#ffc0c0" | '''Physical properties''' - Titanium (20884 bytes)
4: <tr><td colspan="2" align="center">[[scandium]] – '''titanium''' – [[vanadium]...
15: <td>[[Chemical series]]</td><td>[[transition metal]]s</td></tr>
19: <td>[[Density]], [[Mohs hardness scale|Hardness]]</td><td>4507 [[kilogram per cubic me...
27: <td>[[Atomic radius]] (calc.)</td><td>[[1 E-10 m|140 (176) pm]]</td></tr>
41: ...lspan="2" align="center" bgcolor="ffc0c0">'''Physical properties'''</th></tr> - Ununseptium (2081 bytes)
17: |[[Chemical series]]||Presumably [[Halogen]]s
31: ...) is the temporary name of an undiscovered [[chemical element]] in the [[periodic table]] that has the...
34: .... If discovered, it will most likely be a synthetically prepared element. - History of the periodic table (7005 bytes)
3: ...silver]], and [[copper]] from antiquity, as these can all be discovered in nature in native form and a...
8: ...80 when [[Robert Boyle]] rediscovered it and it became public.
10: ...tists began to recognize patterns in the way chemicals reacted and began to devise ways to classify th...
13: ...laced these three elements into a group, which he called a triad.
16: From this law, D?einer went on to discover the [[halogen]] triad composed of [[chlorine]], [[bromine]], an... - Solvent (12764 bytes)
1: ... compounds - they have to be [[inert]]. Solvents can also be used to [[Extraction|extract]] [[soluble...
3: ...] ([[ethanol]]), and in [[Chemical synthesis|chemical syntheses]].
8: ...'' ([[Hydrophobicity|lipophilic]]). The polarity can be measured as the [[dielectric constant]] or th...
12: ... (CH<sub>3</sub>-C(=O)-CH<sub>3</sub>). In [[chemical reaction]]s the use of polar protic solvents fav...
16: ...eed higher temperatures, an air flow, or the application of [[vacuum]] for fast evaporation.
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